Photomath

Photomath uses AI-powered image recognition to solve mathematical problems instantly when you point your phone camera at them. Acquired by Google in 2023, the app has been downloaded over 300 million times and handles everything from basic arithmetic to calculus, trigonometry, and statistics.

What distinguishes Photomath from a simple calculator is its step-by-step solution engine: each problem is broken down into detailed intermediate steps with explanations of which mathematical rule or property is applied at every stage. Students can choose between multiple solution methods for the same problem, understanding that there's often more than one valid approach.

The animated step-by-step walkthroughs visually demonstrate how each transformation works, which is particularly helpful for algebraic manipulation and equation solving. Photomath recognizes both printed textbook problems and handwritten equations, though handwriting recognition accuracy varies with legibility.

The app covers word problems as well, parsing the text to identify the mathematical relationships and set up the appropriate equations. Teachers have noted that Photomath can be a double-edged sword: used responsibly, it's an exceptional tutoring tool that explains concepts students missed in class, but it also enables copying answers without learning.

The free version solves most problems, while Photomath Plus provides deeper explanations, custom visual aids, and textbook-specific solutions.